jQuery custom component (import component)
组件js
(function($){ //自定义去除字符串两边空白 String.prototype.trim=function(){ return this.replace(/(^\s*)|(\s*$)/g, ""); } //自定义导入组件 $.fn.customImport = function(methodOroptions,value){ if(typeof methodOroptions == "string"){//存在方法时,调用方法 return $.fn.customImport.methods[methodOroptions](this, value); } var optionsObj = methodOroptions||{}; //不存在方法时,那么传递的是属性定义。 return this.each(function() { $.data(this, "customImport", { options : $.extend({}, $.fn.customImport.defaults, optionsObj) }); initCustomImport(this); }); } //定义组件默认属性 $.fn.customImport.defaults={ width:400, height:90, enctype:'multipart/form-data', action:'', //导入方法调用 method:'post', //请求方式 fileType:'.XLS,.xlsx', //文件类型,默认为xls格式 xmlName:'', //导入模版XML参数名 xmlValue:'', //导入模版XML参数值 filePath:'', //文件路径参数名 uploadTemplateUrl:'', //下载模版的路径 onSubmit:function(param){ } } //定义组件方法 $.fn.customImport.methods = { submit :function(obj,options){ if($(obj).customImport("validate")){ var formOptions = {}; if(options.action){ formOptions.url = options.action; } if(options.onSubmit){ formOptions.onSubmit = options.onSubmit; } if(options.success){ formOptions.success = options.success; } $CommonUI.getForm("#importForm").form("submit",formOptions); } }, clear:function(obj){ //获取当前文件框 var fileInput = $(obj).find(".real-file"); //在当前文件框后克隆一个相同的元素,并设置值为"",IE默认克隆的值为空,谷歌火狐会将值一起克隆 fileInput.after(fileInput.clone().val("")); //删除当前文件框 fileInput.remove(); //为新的文件框绑定onchange事件 $(obj).find(".real-file").on("change",function(){ changeFile(obj); }); //清空文件显示路径 $(obj).find(".file-pathname").val(""); //取消校验提示 $(obj).find(".validatebox-invalid").removeClass("validatebox-invalid"); }, validate:function(obj){ var validateState = $(obj).find(".file-pathname").validatebox("isValid"); return validateState; } } function initCustomImport(obj){ var options = $.data(obj,"customImport").options; $(obj).width(options.width); $(obj).height(options.height); $(obj).attr("enctype",options.enctype); $(obj).attr("action",options.action); $(obj).attr("method",options.method); if(!flag){ //初始化组件 $(obj).append('<div class="choose-file"><div class="choose-title">浏览目录</div></div>');//添加文件选择按钮 $(obj).find(".choose-file").append('<input class="real-file" type="file"/>'); //真实文件控件 $(obj).find(".choose-file").append('<div class="file-path"><input class="file-pathname validatebox" type="text" readonly="readonly" data-options="required:true,missingMessage:"请选择导入文件",validType:"importFormatValidate""/></div>');//文件路径显示框 $(obj).append('<div class="import-template"><a class="upload-template" href="javascrip:void(0);">导入模版下载</a></div>');//模版下载按钮 $(obj).append('<div class="import-xml"><input class="xml-config" type="hidden"></div>'); $(obj).find('.import-xml').append('<input class="websocket-config" type="hidden" name="dto.code">'); //绑定文件名改变事件 $(obj).find(".real-file").on("change",function(){ changeFile(obj); }); } //绑定组件属性和事件 $(obj).find(".real-file").attr("name",options.filePath);//为文本框绑定name属性 $(obj).find(".real-file").attr("accept",options.fileType);//文件接收类型 $(obj).find(".real-file").width(options.width*0.3-6); $(obj).find(".import-xml .xml-config").attr("name",options.xmlName);//导入的xml参数名 $(obj).find(".import-xml .xml-config").val(options.xmlValue);//导入的xml参数值 //绑定下载模版的url $(obj).find(".upload-template").attr("href",options.uploadTemplateUrl); } //初始化导入框 var flag = false; if($(".custom-import").length>0){ $(".custom-import").customImport(); flag = true; } //选择文件改变时触发 function changeFile(obj){ var filePath = $(obj).find(".real-file").val(); if(filePath&&filePath.trim()!=""){ var fileNamePosition = filePath.lastIndexOf('\\'); var fileName=filePath.substring(fileNamePosition+1); $(obj).find(".file-pathname").val(fileName); $(obj).find(".file-pathname").removeClass("validatebox-invalid"); } } })(jQuery); $(function(){ $.extend($.fn.validatebox.defaults.rules, { importFormatValidate : {// 验证导入格式是否是excel validator : function(value,param) { var fileTypeIndex = value.lastIndexOf("."); var fileType = value.substring(fileTypeIndex); if(fileType!=".xls"&&fileType!=".xlsx"){ return false; } return true; }, message : '请选择.xls或者.xlsx文件!' } }); })
组件css
.choose-file{ padding:10px; } .choose-title{ width: 30%; height: 30px; line-height: 30px; font-size: 20px; text-align: center; background: #337AB7; color: #fff; border-radius: 6px 0 0 6px; cursor: pointer; float:left; } .choose-title:hover{ background: #36577D; } .real-file{ height: 30px; width: 27%; position: absolute; left: 25px; opacity: 0; filter: alpha(opacity=0); } .file-path { width: 70%; height: 30px; float:left; } .file-pathname{ width: 100%; height: 26px; border-radius: 0 6px 6px 0; border: 1px solid #337AB7; } .import-template{ float: right; margin: 10px; background: #cbcbcc; border-radius: 6px; } .import-template:hover{ background:#BEB89D; } .upload-template{ text-decoration: none; color: #fff; padding: 7px; display: inline-block } .import-xml{ display:none; clear:both; } .other-title{ width: 30%; height: 30px; line-height: 30px; font-size: 20px; text-align: center; background: #337AB7; color: #fff; border-radius: 6px 0 0 6px; float:left; } .other-param{ padding:10px; } .other-content{ width: 70%; height: 30px; float:left; } .other-text{ border-radius: 0 6px 6px 0; border: 1px solid #337AB7; }
组件引用
html部分
<div id="importExcelWin" class="dialog"> <form id="importForm" class="custom-import dhccform"></form> </div> <link rel="stylesheet" type="text/css" href="<%=request.getContextPath()%>/js/customComponent/customImport.css"> <script type="text/javascript" src="<%=request.getContextPath()%>/js/customComponent/customImport.js"></script>
js部分
$CommonUI.getDialog("#importExcelWin").dialog({ title : '导入字典', width :430, height :185, closed : true, modal : true, buttons:[{ text:'保存', handler:function(){ importData(); } },{ text:'取消', handler:function(){ $CommonUI.getDialog("#importExcelWin").dialog("close"); } } ] }) //初始化导入框 $("#importForm").customImport({ action:$WEB_ROOT_PATH+"/excel/excelCtrl.htm?BLHMI=importExcel", xmlName:'dto.exportFileName', //导入模版XML参数名 xmlValue:'systemDictionaryImport', //导入模版XML参数值 filePath:'dto.uploadFile', //文件路径参数名 uploadTemplateUrl:$WEB_ROOT_PATH+'/exportexcel/exportExcelCtrl!uploadExcelTemplate.htm?filename=systemDictionary' });
组件效果
1.该组件使用了easyui-validatebox,使用者也需引用该组件不然校验会出错。
2.该组件是结合后端定制的一个组件,以减少前端html重复配置而导致的出错。值得学习的仅仅是组件定义的方法而不是组件本身。
3.为了满足IE组件有2处特殊处理,第一:是用文件框覆盖在选择目录之上以保证IE安全校验只识别鼠标直接点击的文本框。第二:IE不能直接清除文件框的内容,这里采用克隆删除的方式清空文件框以存在的内容。

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